<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        #no_sign{
            list-style-type: none;
        }
    </style>
</head>
<body>
    <ul>
        <li>Coffee</li> 
        <li>Cola</li>
        <li>Mike</li>
    </ul>

    <ul id="no_sign">
        <li>Coffee</li>
        <li>Cola</li>
        <li>Mike</li>
    </ul>
</body>
</html>